Machine for cutting leather



' (No Model.) 2 Sheets-Sheet 1.

J. MATHEIS.

MACHINE FOR CUTTING LEATHER, am.

No. 361,707. Patented Apr. 26, 1887.

; i I H g ;f I J W' W W W ATTEBTI INVENTUH;

V u? rzwy (No Model.) 2 sheets-sh et 2.

J. MATH-BIS.

MACHINE FOR CUTTING LEATHER, &o.

No. 361,707. Patented Apr. 26,1887.

ATTEBTL INVENTUF! Joiuz/Matlzeaks M k y NITED STATES PATENT FFIcE.

JOHN MATHEIS, OF OTTAWA, ILLINOIS.

MACHINE FOR CUTTING LEATHER, 840-.

SPECIFICATION forming part of Letters Patent No. 361,707, dated April 26, 1887.

Application filed September 4. 1886. Serial No. 212.668. (No model.)

To all whom, it may concern:

Be it known that 1, JOHN lVIATHEIS, a citizen of the United States, and a resident of Ottawa, in the county of La Salle and State of Illinois, have invented certain new and useful Improvementsin Machines for Cutting Leather and Similar Materials, of which the following is aspecification.

The invention relates to a machine for cutting materials-such as 1eatherinto strips suitable for shoestrings, fly-nets, shoe-uppers, 85c. and card-board into strips suitable for making paper boxes, or any similar material into appertains to make and use the same, drawings are hereunto annexed and described, in which similar letters represent corresponding elements, and in which each part referred to is designated by a single character.

Figure 1 is a general top view of the machine. Fig. 2 is a general side view. Fig. 3 is a sectional view at x in Fig. 1, the rollers not being shown in section; and Fig.4 shows the frame containing the cutting-knives of the machine.

The machine consists of the combination of two parallel rollers, the one, A, located, directly above the others; B, gearing -such as cog-wheels Gconnecting the said rollers; means-such as a screw, D, and blocks E, held by guides F-for adjusting the distances between said rollers; longitudinal feeding-teeth G upon one roller; circular grooves .H upon both rollers, having sides I perpendicular to the axes of the rollers, and the grooves being located directly opposite each other; cuttingedges J, slanting toward the imaginary line connecting the axes of the rollers,and to each located in one groove of each roller; shanks K for said cutting-edges, curving downward and then outward relatively to the lower roller, the thickness of the shanks being equal to the width of the grooves; spacing-blocks L, equal in thickness to the distance between any two grooves; a stationary frame or socket, M, for holding said shanks and blocks; a clampingscrew,N,passingthrongh said frame and pressing upon said blocks and shanks; a platform, 0, opposite said cutting-edges for supporting any material to be cut, and an adjustable guide, P, upon said platform and having a slot, Q. r

When a piece of material (not shown, as it is not a part of the device) is passed over the platform Q and between the rollers A and B While rotating, its course against the knife edges J, it is cut into strips equal in thickness to the spaces between the shanks K. The teeth G help to propel the material.

By loosening the screw N the cutting-edges or knives may be removed and readjusted to cut strips of almost any width by removing one or more knives and replacing them by blank shanksi. a, by blocks like L, only of the same thickness as the shanks. WVhile the cutting-edges are removed they may be easily sharpened, being nearly straight cutting-edges andlike an ordinary plane or jackknife.

An advantage over previous constructions in the manner of securing the knives in place is found in the fact that by simply loosening the screw N any one or all the knives may be instantly removed from the frame or socket M,

which holds them in place, while in machines of this class as heretofore constructed each knife has been individually secured,thus making the removal of the knives slow and tedious.

It makes no difference particularly,nor as to an item of patentability, whether the lower or upper roller has-the feeding-teeth G. Itis not necessary that the cutting-edges should incline exactly to the same extent as shown in the drawings, nor that there should be more than one cutting-edge. Any kind of well-known gearing may be substituted for the cog-wheel 0.

Having now statedthe object of the said invention, having described its practical realization by reference to the accompanying drawings, and having particularly ascertained the manner in which the same operates to accomplish the said object,what I claim isroughened, said rollers having peripheral grooves, knives or cutters fitting in said grooves, a frame or socket, M, and the screw N, as set forth.

4. The combination, with a supporting- 20' frame, of feed-rollers, cutting-knives, a platform for supporting the material,and a guide, 1?, having a slot, Q, as described.

In witness whereof I have hereunto affixed my seal and signed my name in the presence 25 of two subscribing witnesses.

JOHN MATHEIS. [n s.]

WVitnesses:

E. S. ENYORT, OHAs. E. BUTTON. 

